The normal value of thyroglobulin should be less than 40 μg/L after thyroid cancer surgery. Thyroid cancer is thyroid cancer. If you have thyroid cancer, thyroglobulin will continue to rise. The normal condition of thyroglobulin, on the other hand, is less than 40 μg/L. If the thyroglobulin index is high after thyroid cancer surgery, you should cooperate with your professional doctor to use thyroid hormone medication in order to reduce the value of thyroglobulin and promote the recovery of thyroid function. If thyroglobulin index is abnormal after thyroid cancer surgery, it is recommended to cooperate with professional oncologists as soon as possible to improve relevant examinations, including imaging examination and pathology examination, etc., so as to clarify whether the tumor cells spreading from thyroid cancer are cleared cleanly. Once it is found that the tumor cells have not been cleaned out, corresponding treatment measures should be taken as soon as possible to avoid further deterioration of the condition.